﻿//Copyright (c) 2007-2012, Adolfo Marinucci
//All rights reserved.

//Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
//following conditions are met:

//* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

//* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//disclaimer in the documentation and/or other materials provided with the distribution.

//* Neither the name of Adolfo Marinucci nor the names of its contributors may be used to endorse or promote products
//derived from this software without specific prior written permission.

//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
//INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
//IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
//EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
//STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
//EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;

namespace AvalonDock
{
    internal static class Extentions
    {
        public static bool Contains(this IEnumerable collection, object item)
        {
            foreach (var o in collection)
                if (o == item)
                    return true;

            return false;
        }


        public static void ForEach<T>(this IEnumerable<T> collection, Action<T> action)
        {
            foreach (T v in collection)
                action(v);
        }


        public static int IndexOf<T>(this T[] array, T value) where T : class
        {
            for (int i = 0; i < array.Length; i++)
                if (array[i] == value)
                    return i;

            return -1;
        }

        public static V GetValueOrDefault<V>(this WeakReference wr)
        {
            if (wr == null || !wr.IsAlive)
                return default(V);
            return (V)wr.Target;
        }
    }
}
